BigIP 4200 Active/Standby <> Change Management IP/Hostname
Hi,
I'm running a pair of BigIP 4200 in an Active/Standby Configuration. Softwareversion is 11.4.0 HF6. I have a dedicated link for the network failover. I am using the IP of the Failover-Network and the Management IP as Unicast Failover Adresses.
Due to a change in our network design, I have to change the Management-IP/Hostname for both devices.
I tried the change, but I ended up with a lot of problems and the BigIPs in State Active/Active. Luckily, I did a backup of the working configuration und I could make a restore immediately. I performed the following steps:
- delete the Management IP as a Failover Unicast IP
- change IP, Subnet, Gateway und Hostname in one Step using the GUI on Standby-Unit
- change IP, Subnet, Gateway und Hostname in one Step using the GUI on Active-Unit
What exactly was my problem? Did I destroy my device trust by changing the hostname, or was changing the IP the reason? Is there a chance to change Management IP/Hostname In-Service or do I need a maintenance window?
Thanks in advance Regard,
Thorsten